Validation of sea ice concentration - American sector
Bulletin date: 2024-03-14
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-03-08:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5163 |
2897 |
29 |
12 |
0 |
0 |
0 |
0 |
| OW |
0 |
202 |
146 |
191 |
27 |
0 |
0 |
0 |
| VODI |
0 |
1 |
17 |
305 |
139 |
19 |
0 |
0 |
| ODI |
0 |
0 |
0 |
60 |
280 |
110 |
6 |
0 |
| CDI |
0 |
0 |
0 |
1 |
138 |
628 |
365 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
1422 |
9280 |
39790 |
|
...date precedes bulletin
|
Date: 2024-03-10:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4776 |
2931 |
19 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
143 |
174 |
261 |
32 |
4 |
0 |
0 |
| VODI |
0 |
0 |
8 |
317 |
216 |
23 |
4 |
0 |
| ODI |
0 |
0 |
0 |
15 |
339 |
123 |
16 |
0 |
| CDI |
0 |
0 |
0 |
0 |
61 |
518 |
199 |
9 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1954 |
10242 |
38841 |
|
...date precedes bulletin
|
Date: 2024-03-12:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4448 |
2880 |
21 |
13 |
0 |
0 |
0 |
0 |
| OW |
0 |
222 |
138 |
102 |
17 |
0 |
0 |
0 |
| VODI |
0 |
0 |
13 |
432 |
61 |
15 |
0 |
0 |
| ODI |
0 |
0 |
0 |
47 |
428 |
46 |
4 |
0 |
| CDI |
0 |
0 |
0 |
0 |
199 |
560 |
95 |
16 |
| VCDI |
0 |
0 |
0 |
0 |
127 |
2179 |
12381 |
36787 |
|
...date precedes bulletin
|
Date: 2024-03-14:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4151 |
2786 |
10 |
13 |
1 |
0 |
0 |
0 |
| OW |
0 |
380 |
92 |
76 |
21 |
3 |
0 |
0 |
| VODI |
0 |
24 |
53 |
388 |
77 |
10 |
0 |
0 |
| ODI |
0 |
0 |
0 |
81 |
464 |
59 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
236 |
567 |
173 |
30 |
| VCDI |
0 |
0 |
0 |
0 |
217 |
2271 |
11022 |
38026 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4151 |
2823 |
13 |
15 |
5 |
0 |
0 |
0 |
| OW |
0 |
339 |
97 |
90 |
21 |
3 |
0 |
0 |
| VODI |
0 |
28 |
45 |
370 |
73 |
9 |
0 |
0 |
| ODI |
0 |
0 |
0 |
83 |
459 |
57 |
1 |
0 |
| CDI |
0 |
0 |
0 |
0 |
234 |
528 |
233 |
29 |
| VCDI |
0 |
0 |
0 |
0 |
224 |
2313 |
10961 |
38027 |
|
Date: 2024-03-16:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4094 |
2717 |
9 |
16 |
2 |
0 |
0 |
0 |
| OW |
0 |
416 |
87 |
54 |
21 |
1 |
0 |
0 |
| VODI |
0 |
37 |
73 |
373 |
66 |
11 |
0 |
0 |
| ODI |
0 |
0 |
0 |
121 |
469 |
77 |
2 |
0 |
| CDI |
0 |
0 |
0 |
4 |
245 |
654 |
62 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
247 |
2075 |
8395 |
40899 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4094 |
2786 |
15 |
16 |
5 |
0 |
0 |
0 |
| OW |
0 |
342 |
87 |
87 |
21 |
1 |
0 |
0 |
| VODI |
0 |
42 |
67 |
319 |
76 |
13 |
0 |
0 |
| ODI |
0 |
0 |
0 |
140 |
420 |
94 |
3 |
0 |
| CDI |
0 |
0 |
0 |
6 |
272 |
617 |
160 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
256 |
2093 |
8296 |
40898 |
|
Date: 2024-03-18:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3910 |
2834 |
10 |
26 |
7 |
0 |
0 |
0 |
| OW |
0 |
310 |
141 |
90 |
25 |
0 |
0 |
0 |
| VODI |
0 |
2 |
15 |
444 |
107 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
11 |
512 |
83 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
290 |
1223 |
70 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
241 |
1976 |
9598 |
39302 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3910 |
2700 |
17 |
27 |
8 |
0 |
0 |
0 |
| OW |
0 |
371 |
68 |
73 |
32 |
1 |
0 |
0 |
| VODI |
0 |
75 |
81 |
350 |
88 |
11 |
0 |
0 |
| ODI |
0 |
0 |
0 |
121 |
410 |
123 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
354 |
911 |
160 |
16 |
| VCDI |
0 |
0 |
0 |
0 |
290 |
2237 |
9508 |
39289 |
|
Date: 2024-03-20:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4490 |
2525 |
0 |
12 |
14 |
0 |
0 |
0 |
| OW |
0 |
529 |
42 |
56 |
27 |
0 |
0 |
0 |
| VODI |
0 |
163 |
88 |
249 |
98 |
11 |
0 |
0 |
| ODI |
0 |
15 |
28 |
171 |
271 |
56 |
0 |
0 |
| CDI |
0 |
1 |
0 |
47 |
461 |
491 |
25 |
20 |
| VCDI |
0 |
0 |
0 |
3 |
640 |
2492 |
8984 |
39222 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4490 |
2297 |
3 |
13 |
19 |
0 |
0 |
0 |
| OW |
0 |
545 |
25 |
62 |
26 |
4 |
0 |
0 |
| VODI |
0 |
348 |
74 |
116 |
59 |
22 |
0 |
0 |
| ODI |
0 |
42 |
56 |
260 |
168 |
52 |
0 |
0 |
| CDI |
0 |
1 |
0 |
81 |
538 |
427 |
17 |
53 |
| VCDI |
0 |
0 |
0 |
6 |
701 |
2545 |
8992 |
39189 |
|
Date: 2024-03-22:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4918 |
2445 |
4 |
12 |
4 |
0 |
0 |
0 |
| OW |
0 |
531 |
60 |
37 |
24 |
0 |
0 |
0 |
| VODI |
0 |
215 |
76 |
238 |
64 |
13 |
2 |
0 |
| ODI |
0 |
50 |
38 |
137 |
153 |
104 |
14 |
0 |
| CDI |
0 |
22 |
4 |
118 |
327 |
509 |
203 |
18 |
| VCDI |
0 |
1 |
1 |
36 |
709 |
2174 |
11076 |
36894 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4918 |
2247 |
4 |
16 |
5 |
0 |
0 |
0 |
| OW |
0 |
563 |
51 |
42 |
23 |
0 |
0 |
0 |
| VODI |
0 |
289 |
60 |
170 |
58 |
20 |
4 |
0 |
| ODI |
0 |
146 |
55 |
153 |
127 |
113 |
19 |
1 |
| CDI |
0 |
18 |
13 |
151 |
339 |
383 |
347 |
17 |
| VCDI |
0 |
1 |
0 |
46 |
729 |
2284 |
10925 |
36894 |
|
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